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Introduction
Carlos Quental concluded his PhD in Biomedical Engineering from the University of Lisbon in 2013. During his doctoral studies he developed computational tools, based on multibody and finite element formulations, to study the biomechanics of the shoulder joint. He is author and co-author of more than 15 papers in peer-reviewed international journals and of 3 book chapters. In 2015, he was awarded the Professor João Martins Young Researcher Award by the Portuguese Society of Biomechanics. Since 2016 he is the representative of APMTAC in the Young ECCOMAS Investigators Committee. Currently, he is a junior researcher at the Institute of Mechanical Engineering, where he continues his research in computational Biomechanics, and is an Invited Assistant Professor at Instituto Superior Técnico.
Skills and Expertise
Current institution
Additional affiliations
February 2024 - present
September 2016 - present
Education
March 2009 - November 2013
September 2003 - November 2008
Publications
Publications (46)
Purpose
The Achilles tendon is a common injury site, but anatomical risk factors for injury are relatively unexplored in the literature. This study aimed to evaluate whether changes in free tendon length would influence the results of a simulated rupture of the Achilles tendon.
Methods
Using a previously validated 3D finite element model of the fr...
Substantial research on complete Achilles tendon ruptures is available, but guidance on partial ruptures is comparatively sparse. Conservative management is considered acceptable in partial tendon ruptures affecting less than 50% of the tendon's width, but supporting experimental evidence is currently lacking. Using a previously validated finite el...
Objectives
To assess the ability of the arthroscopic superior capsule reconstruction (SCR) in restoring glenohumeral stability in the presence of different preoperative patterns of irreparable rotator cuff tears (RCTs).
Methods
A computational musculoskeletal (MSK) model of the upper limb was used to simulate isolated SCR and to estimate the stabil...
Cut-out of the hip blade of fracture fixation implants, defined as the perforation of the femoral head by the blade due to the collapse of the neck-shaft angle into varus, is the most relevant mechanical complication in the treatment of trochanteric fractures. Among the factors that contribute to cut-out, the blade positioning in the femoral head i...
The Latarjet procedure is the most popular surgical procedure to treat anterior glenohumeral (GH) instability in the presence of large anterior glenoid bone defects. Even though the placement of the bone graft has a considerable influence on its efficacy, no clear indications exist for the best graft position. The aim of this study was to investiga...
One of the main limitations in the musculoskeletal modeling and analysis of swimmers is the acquisition of external forces, which precludes the estimation of internal forces, crucial for advancing knowledge on swimming biomechanics. Computational simulations allow an estimation of these forces, and Swumsuit (SWimming hUman Model with Synthetic User...
This study aims to integrate an open-source software capable of estimating hydrodynamic forces solely from kinematic data with a full-body biomechanical model of the human body to enable inverse dynamic analyses of swimmers. To demonstrate the methodology, intersegmental forces and joint torques of the lower limbs were computed for a six-beat front...
Background
Metaphyseal sleeves help maintain long term stability and reduce revision rate for aseptic loosening in total knee arthroplasty (TKA) revision. However, their performance regarding bone remodeling is still poorly known for the long term. This study aimed to investigate the impact of metaphyseal sleeves on the bone remodeling of the tibia...
The Achilles tendon is a common injury site. Ruptures are usually located in the free tendon but may cross the myotendinous junction into the aponeurotic region. Considering the possibility of aponeurotic region involvement in Achilles tendon ruptures, a novel 3D finite element model that includes both the aponeurotic and free AT regions and featur...
The number of people running has risen exponentially in the last decade, increasing the need for better research on running-related injuries, shoe construction and performance enhancement. Considering the key role of the ankle, the second most injured joint after the knee and the only link of the body to the ground, for human motion, the aim of thi...
In arthroscopic superior capsular reconstruction (ASCR) in irreparable rotator cuff tears (IRCTs), a graft is positioned and fixed between the superior rim of the glenoid and the humeral supraspinatus footprint. The fixation of the graft aims to restore the stability and improve the kinematics of the shoulder. The shoulder position during fixation...
The position of the lag screw in the femoral head is a key factor to cut-out, the most reported complication in the internal fixation of intertrochanteric fractures. Considering that the best position for the lag screw remains controversial, the aim of this study was to evaluate the influence of different lag screw positions on the risk of cut-out...
Background:
The proximal fascia lata (FL) graft construct used for arthroscopic superior capsule reconstruction (ASCR) is openly harvested, whereas the mid-thigh FL graft construct is minimally invasively harvested. The purpose of the current study was to compare the biomechanical properties of proximal thigh and mid-thigh-harvested FL graft const...
Lateral ankle instability, resulting from the inability of ankle ligaments to heal after injury, is believed to cause a change in the articular contact mechanics that may promote cartilage degeneration. Considering that lateral ligaments’ insufficiency has been related to rotational instability of the talus, and that few studies have addressed the...
Considering that optimal contact area and pressure at the tendon-bone interface are associated with better footprint repair and outcomes, the aim of this study was to compare the performance of standard double-row, transosseous equivalent (TOE), and partial articular supraspinatus tendon avulsion (PASTA) techniques for the treatment of full-thickne...
Although the primary stability of joint implants is fundamental for successful osseointegration, little is known about it for stemless shoulder implants. Considering 3D finite element models, the purpose of this study was to evaluate the primary stability of 5 stemless designs, based on the Sidus, SMR, Simpliciti, Eclipse, and Global Icon stemless...
The design of commercially available fixation plates and the materials used for their fabrication lead to the plates being stiffer than bone. Consequently, commercial plates are prone to induce bone stress shielding. In this study, three-dimensional fixation plates are designed using topology optimisation aiming to reduce the risk of bone stress sh...
Background:
Despite stemless implants showing promising functional and radiologic clinical outcomes, concerning signs of complications, such as bone resorption, have been reported. The aim of this study was to investigate the influence of 5 stemless designs on the bone adaptation process of the humerus.
Methods:
Three-dimensional finite element...
Most dynamic simulations are based on inverse dynamics, being the time-dependent physiological nature of the muscle properties rarely considered due to numerical challenges. Since the influence of muscle physiology on the consistency of inverse dynamics simulations remains unclear, the purpose of the present study is to evaluate the computational e...
Tibial tuberosity advancement (TTA) is a promising method for the treatment of cruciate ligament rupture in dogs that usually implies the implantation of a titanium cage as bone implant. This cage is non-biodegradable and fails in providing adequate implant-bone tissue integration. The objective of this work is to propose a new process chain for de...
Knowledge regarding the likelihood of propagation of supraspinatus tears is important to allow an early identification of patients for whom a conservative treatment is more likely to fail, and consequently, to improve their clinical outcome. The aim of this study was to investigate the potential for propagation of posterior, central, and anterior f...
The application of musculoskeletal models to estimate muscle and joint reaction forces usually requires optimization strategies, regardless of using inverse or forward dynamics approaches. Most studies combined inverse dynamics and Static Optimization (SO) to solve the redundant muscle force distribution problem. However, the SO does not allow the...
Kinematically unconstrained biomechanical models of the glenohumeral (GH) joint are needed to study the GH joint function, especially the mechanisms of joint stability. The purpose of this study is to develop a large-scale multibody model of the upper limb that simulates the 6 degrees of freedom (DOF) of the GH joint and to propose a novel inverse...
The majority of biomechanical analyses of human motions, including those with musculoskeletal models, use inverse dynamic approaches due to its ability to deal with experimentally acquired kinematic and kinetic data. Yet, a forward dynamic approach can be more powerful and provide better insights on the transmission of forces in the internal biomec...
The vast majority of musculoskeletal models of the upper limb follow an inverse dynamic approach due to its efficiency. Yet, a forward dynamic approach is more powerful. The aim of this study is to develop a forward dynamic model of the upper limb and to investigate its ability to track prescribed motions. For that purpose, an inverse dynamic model...
The reverse shoulder prosthesis aims to restore the stability and function of pathological shoulders, but the biomechanical aspects of the geometrical changes induced by the implant are yet to be fully understood. Considering a large-scale musculoskeletal model of the upper limb, the aim of this study is to evaluate how the Delta reverse shoulder p...
The wear of ultra-high molecular weight polyethylene, UHMWPE, components has been associated with the failure of joint prostheses in the hip, knee, and shoulder. Considering that in vitro experiments are generally too expensive and time-consuming, computational models are an attractive alternative to study the wear behavior of UHMWPE components. Th...
Although the assumption of an ideal spherical shoulder joint in upper limb biomechanical models is the most common, some studies report small translations of the humeral head. The aim of this study is to modify an inverse dynamic model of the upper limb, and propose a novel procedure, to estimate not only the muscle and joint reaction forces but al...
According to Wolff’s law, the changes in stress after a prosthesis implantation may modify the shape and internal structure of bone, thus compromising the long-term prosthesis fixation and, consequently, be a significant factor for glenoid loosening. The aim of the present study is to evaluate the changes in the bone adaptation process of the scapu...
The inverse dynamics technique applied to musculoskeletal models, and supported by optimisation techniques, is used extensively to estimate muscle and joint reaction forces. However, the solutions of the redundant muscle force sharing problem are sensitive to the detail and modelling assumptions of the models used. This study presents four alternat...
The reverse shoulder replacement, recommended for the treatment of several shoulder pathologies such as cuff tear arthropathy and fractures in elderly people, changes the biomechanics of the shoulder when compared to the normal anatomy. Although several musculoskeletal models of the upper limb have been presented to study the shoulder joint, only f...
Finite element analyses, with increasing levels of detail and complexity, are becoming effective tools to evaluate the performance of joint replacement prostheses and to predict the behaviour of bone. As a first step towards the study of the complications of shoulder arthroplasty, the aim of this work was the development and validation of a 3D fini...
The aim of this work is to propose a robust musculoskeletal model of the upper limb to serve as the basis for the study of different types of shoulder pathologies, including the use of anatomical or reverse prostheses. The multibody biomechanical model is defined by seven rigid bodies constrained by the sternoclavicular, acromioclavicular, and glen...
The shoulder arthroplasty has become an efficient treatment for some pathologies. However there are complications that can compromise its success. Among them, the stress shielding effect on the humerus has been reported as a possible cause of failure. The objective of this work was to investigate the bone remodelling in the humerus after a shoulder...
The human muscle-skeletal system has a large number of redundant muscles, implying that the same motion may be obtained by different combination of muscle forces. As a consequence, the modeling of the kinematics of biomechanical models used for human motion task simulations has important implication on the distribution of the muscle forces and join...
Although the upper limb is needed nearly for all commonly performed activities it is still one of the lesser studied parts of the human musculoskeletal system. In this work three musculoskeletal models of the upper limb, based on multibody formulations, are presented. The aim of this work is to compare the performance and applicability of three bio...
